/*
 * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package cn.cloud.all.security.access.expression.method;

import cn.cloud.all.security.access.expression.SecurityExpressionRoot;
import cn.cloud.all.security.core.Authentication;

/**
 * Extended expression root object which contains extra method-specific functionality.
 *
 * @author Luke Taylor
 * @since 3.0
 */
class MethodSecurityExpressionRoot extends SecurityExpressionRoot implements MethodSecurityExpressionOperations {
    private Object filterObject;
    private Object returnObject;
    private Object target;

    MethodSecurityExpressionRoot(Authentication a) {
        super(a);
    }

    public void setFilterObject(Object filterObject) {
        this.filterObject = filterObject;
    }

    public Object getFilterObject() {
        return filterObject;
    }

    public void setReturnObject(Object returnObject) {
        this.returnObject = returnObject;
    }

    public Object getReturnObject() {
        return returnObject;
    }

    /**
     * Sets the "this" property for use in expressions. Typically this will be the "this"
     * property of the {@code JoinPoint} representing the method invocation which is being
     * protected.
     *
     * @param target the target object on which the method in is being invoked.
     */
    void setThis(Object target) {
        this.target = target;
    }

    public Object getThis() {
        return target;
    }
}
